Pull-boat



(No Model) 4 Sheets-Sheet 1.

L. B. McEWEN. PULL BOAT.

WITNESSES M Lucius 5. /77. E1. /E/7.

l/VI/ENTOR 4.S1 1eetsSheet 3.

(No Model.)

L. B. MOEWEN.

PULL BOAT.

No. 562,644. Patented June 23, 1896.

(No Model.) 4 Sheets-Sheet 4. L. B. MGEWEN. PULL BOAT.

No. 562,644; Patented June 28, 1896.

o C O o 0 1 1 t W plan View of and looking to the left.

UNITED JSTATES PATENT ()FFICE.

LUCIUS .BAUON MGFDVEi 1 OF BONNE'I ()ARRE, LOUISIANA.

PULL-BOAT.

BPEGIFIOATION'fomningpartof Letters'Patent'No. 562,644, dated'June 23, 1898.

' Applicatianfiledmtober 14,1895. -Serial-No.-565,648. No model.)

having the wearingparts replaceable, and in certain other novel details of construction and combinations and arrangements of parts that will be hereinafter more fully described an d. claimed. Reference is had to theacoompanying drawings, in which the same parts are indicated by the same letters throughout the several views.

Figure 1 represents aside elevation of'the drums and the means fordriving the same, the device being partly shown in section along the broken line the drums and the means for driving the same. Fig. 2 represents a plan view of the engine and attachments whereby the pullboat is anchored and the cable hauled taut. Fig. 3 represents a plan view low-blocks in which the drums are journaled. Fig. strepresents a side elevation of the opposite pillow-block from that shown in Fig. 3, in which the opposite ends of the shafts carrying the drums are journaled. Fig. 5 represents a section along the line 5 5 of Fig, 4 Fig. 6 represents a side elevation, partly in section, of one of the drums. Fig. 7 represents a section along the line 7 '7 of Fig. 6; and Fig. S-represents a plan view of the pull-boat, showing the cable led out therefrom and the device in the operation of pulling home the logs.

A represents the pull-boat, which is represented as moored in the stream, being held in position by the hauling-cable D, extending out in one direction, and the fall F, led out in the other direction.

Instead of a boat A the apparatus herein- United States, resid-' the parish of St. John of Louisiana, have inuseful Improvements;

1 l of Fig. 2. Fig. 2 represents a of one of the pilafter describedm-ay'be operated from a rail-.

imy-car, if desired.

B represents the hauling-engine, provided, preferably, with two cylinders l 3, having their piston-rods connected to the cranks I), set at approximately ninety degrees apart, which cranks drive the crankshaft 13", carrying the pinion 1%,which meshes in the gear-wheelli on the shaft Biwhich shaft also carries the pinion B, meshing in the gear-wheels llflmounted on the drum-shafts B, carrying the drums B. These (1 rum-shafts are journaled in the pillow-blocks A and A, which are each made of a single casting, and are provided with a flanged bed-plate a, integral therewith, having down- -wardly-projecting ribs or and vertical ribs a with boltvholes a, and reinforced portions of, having bolt-holes aflbymeans of which the said pillow-block is secured to the boat or car. The bolt-holes a are preferably surrounded by reinforces a", so as to get greater thickness of metal. around the bolt-holes. The pillowblocks are hollowed out at a and a so as to form, substantially, two verticalwebs or beams of metal connected together at their centers and ends, all as shownmost clearly in Figs. 3 to 5. The two ends .of the pillowblocks are shouldered, as at a", to receive the cap-squares A whose flanged ends a are held in place by the lock-nuts a. Oil-cups a are preferably cast in the said cap-squares for the purpose of lubricating the bearings of the drum-shaft. The outer pillow-block A has only two bearings, one for each of the drum-shafts, while the inner pillow-block A is provided with three shaft-bearings, the central bearingbeing for the shaftrB carrying the driving-pinion B. This central bearing is provided with the sleeve A held down by the bar a and the lock-nuts a, as shown in Fig. 4. By having these pillow-blocks cast each in one piece and constructed as shown great strength is secured, whereby the excessive strains due to the tension of the cable on the drums are safely resisted.

The drums li are provided with a hubh", connected by the spokes b to the rims I), having the side flanges b These rims b are covered with a plurality of detachable corrugated staves b extending axially between the side flanges b the corrugations in which are so arranged spirally that the cable will wind ECO continuously on one drum, and passing from one drum to the other will wind continuously thereon. These staves are made of chilled cast iron or steel, and are secured to the rims I) either by means of bolts 11 and nuts I), or by tap-bolts b, or in any other convenient way. The heads of these bolts are countersunk below the bottom of the corrugations in the staves, so that they will be out of the way of the cable. The purpose of having these staves detaehably secured on the drums is to render it possible to conveniently renew the corrugated surface of the drum without at the same time providing an entirely new drum. The drums ordinarily in use are made of cast iron or steel, and the corrugated rims are cast integral with the drum. The corrugations wear out, or wear unevenly, andin course of time the drum becomes unfit for f urther use, due to this wear. By forming the corrugated wearing-surface in a part of the drum that may be readily detached and re placed when desired, I obviate the great expense incident to replacing an old drum with one that is new throughout.

The cable I) is wound on the two drums and is led down into the woods for a distance of three-quarters of a mile or less, and is there passed over a sheave d, as shown in Fig. 8. Hauling-ropes D are connected to the said cable and are led over suitable sheaves to drag the legs L in toward the main cable, but these details are well known in the art and will not be further described in this application.

In order to anchor the boat in the stream or lake, I provide a smaller engine E, driven by the cylinder E, which drives the crankshaft E carrying the pinion E meshing in the gear-Wheel E on the shaft of the drum E on which drum is wound the end of the fall f of the tackle F, whose inner end is hooked to the pull-boat, and whose outer end is hooked to a rope or strap connected to the stake'or stump g. \Vhcn the cable D is led out and this tackle F is hooked, bywinding up on the drum E the boat is pulled away from the sheave (Z, tautcning the said cable and steadying the boat in the proper position. In this manner the proper tension on the cable I) may be rapidly attained and readily adjusted, and thus a great saving in time over the methods now in use is obtained.

The various advantages of the herein-described construction will readily suggest themselves to any practical lumbcrman.

It will be obvious that various modifications of the herein-described device might be made which could be used without departing from the spirit of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Iatent of the United States, is-

1. In an apparatus for hauling logs, the combination with an endless cable passing over a sheave at the outer bight, of .two drums provided with detachable spirall y-corru gated plates 011 which the inner bight of said cable is wound, and means for rotating said d rums, substantially as described.

2. In an apparatus forhaulinglogs, the combination with a drum, of a spirally-corrugated periphery composed of a plurality of axial 'staves detachably connected to said drum,

substantially as described.

A drum for use in apparatus of the character described, comprising a hub, a rim with side flanges, connections between said hub and said rim, and a plurality of spirally-corrugated metal staves, detachably secured to said rim, substantially as and f or the purposes described.

In testimony whereof I afiix my signainre in presence of two witnesses.

' LUCIUS BAG-ON McElYEN.

\Vitnesscs:

L. R. SASSINOT,

J. D. OKEEFE. 

